ASTEROIDAL OCCULTATION - REPORT FORM +------------------------------+ +------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +------------------------------+ 1 DATE: 2020 March 08 STAR: UCA 599-043549 ASTEROID: (1356) Nyanza 2 OBSERVER: Name: Gérard VAUDESCAL Abbr:VDC E-mail: gg.vaudescal@free.fr Address: 65380 Azereix - France Name: Abbr: E-mail: Address: 3 OBSERVING STATION: Nearest city: VISKER(65200) Station: Observatoire de Biscarmiau Latitude: N 43 08 40.4 (WGS84) Longitude: E 00 03 31.8 (WGS84) Altitude: 488 m Single, OR Double or Multiple station (Specify observer's name): Single +----------------------------------+ 4 TIMING OF EVENTS: | | | OCCULTATION RECORDED: POSITIVE | | | +----------------------------------+ Type of event Start observation Interrupt-start Disappearance Blink Flash End observation Jnterrupt-end Reappearance Other (specify) Event Time (UT) Acc. Comments Code HH MM SS.ss S.ss S - 01:49:16.69 on frame n°8 (correction Gerhard Dangl) D - 01:49:52.35 +/- 0.06 frame 454,5 " R - 01:50:05.89 +/- 0.04 frame 623,5 " E - 01:50:46.21 on frame n°745 " Duration : 13.54 +/-0.1 sec Mid-event: 01:49:59.12 UT (Pédicted 01:50:00 +/-11.1sec) Was your reaction time applied to the above timings? NO 5 TELESCOPE: Type: NEWTON Aperture: 305 mm Magnification: Focus 1188 mm Mount: Equatorial Motor drive: YES 6 TIMING & RECORDING: Time source: GPS 1 PPS Sensor: CAMERA WATEC 910HX/RC CCIR - integrated Shutter Low x4 (0,08sec/f) - Gamma: 1 - Gain: 38dB Recording: OccuRec V 3.3.1 Beta and Grabber Lindy USB2 - mode AAV - Intégration rate: x2 Time insertion (specify):IOTA VTI V3 (CCIR) Event insertion (specify): PC-Windows7 7 OBSERVING CONDITIONS: Clear SKY (Cirrus 50%) Wind: 0 ms Temperature: 4 °C Star image stability: good Minor planet visible: No 8 ADDITIONAL COMMENTS: Reduction under TANGRA 3.6.23 and AOTA v4.9.1.0 Predicted Max Duration: 15.9 sec Error in Time: +/- 11.1 sec Predicted Combined Magnitude: 12.62 mag Predicted Magnitude Drop: 2.88 mag